#define __SDCC_FLOAT_LIB
#include <float.h>

#ifdef FLOAT_ASM_MCS51

// unsigned long __fs2ulong (float x)
static void dummy( void ) __naked {
  __asm
  .globl	___fs2ulong
  ___fs2ulong:
  mov	r7, #158
  .globl	fs2ulong_begin
  fs2ulong_begin:
  lcall	fsgetarg
  jnb	sign_a, fs2ulong_int
  ljmp	fs_return_zero

  fs2ulong_int:
  clr	c
  mov	a, r7
  subb	a, exp_a
  jnc	fs2ulong_int_ok
  // if we get here, x >= 2^32
  mov	a, #0xFF
  mov	b, a
  mov	dph, a
  mov	dpl, a
  ret

  fs2ulong_int_ok:
  mov	r1, #0
  lcall	fs_rshift_a

  fs2ulong_done:
  mov	dpl, r1
  mov	dph, r2
  mov	b, r3
  mov	a, r4
  ret
  __endasm;
}

#else

/*
** libgcc support for software floating point.
** Copyright (C) 1991 by Pipeline Associates, Inc.  All rights reserved.
** Permission is granted to do *anything* you want with this file,
** commercial or otherwise, provided this message remains intact.  So there!
** I would appreciate receiving any updates/patches/changes that anyone
** makes, and am willing to be the repository for said changes (am I
** making a big mistake?).
**
** Pat Wood
** Pipeline Associates, Inc.
** pipeline!phw@motown.com or
** sun!pipeline!phw or
** uunet!motown!pipeline!phw
*/

/* (c)2000/2001: hacked a little by johan.knol@iduna.nl for sdcc */


union float_long {
  float f;
  long l;
};

/* convert float to unsigned long */
unsigned long
__fs2ulong( float a1 ) {
  volatile union float_long fl1;
  volatile int exp;
  volatile long l;
  fl1.f = a1;
  if( !fl1.l || SIGN( fl1.l ) )
  { return ( 0 ); }
  exp = EXP( fl1.l ) - EXCESS - 24;
  l = MANT( fl1.l );
  l >>= -exp;
  return l;
}

#endif
